Dictionary
cy•an•o•type
Pronunciation: (sī-an'u-tīp"), [key]—
n.
1. a process of photographic printing, used chiefly in copying architectural and mechanical drawings, that produces a blue line on a white background.
2. a print made by this process.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.